Chamaesyce plant named ‘Dochastaduclewhi’

ABSTRACT

A new and distinct cultivar of  Chamaesyce  plant named ‘Dochastaduclewhi’, characterized by its relatively compact, mounding to semi-trailing plant habit; moderately vigorous growth habit; freely branching habit; freely flowering habit; and inflorescences with multiple white-colored flower bracts.

Botanical designation: Chamaesyce hyperidifolia.

Cultivar denomination: ‘DOCHASTADUCLEWHI’.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR & APPLICANT/ASSIGNEE

An European Community Plant Breeder's Rights application for the instant plant was filed by the Applicant/Assignee, Dümmen Group B.V. of De Lier, The Netherlands on Aug. 19, 2020, application number 2020/1946. Foreign priority is not claimed to this application.

The Inventor and Applicant/Assignee assert that no publications nor advertisements relating to sales, offers for sale or public distribution occurred more than one year prior to the effective filing date of this application. Any information about the claimed plant would have been obtained from a direct or indirect disclosure from the Inventor and/or Applicant/Assignee. Inventor and Applicant/Assignee claim a prior art exception under 35 U.S.C. 102(b)(1) for disclosure and/or sales prior to the filing date but less than one year prior to the effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Chamaesyce plant, botanically known as Chamaesyce hypericifolia and hereinafter referred to by the name ‘Dochastaduclewhi’.

The new Chamaesyce plant is a product of a planned breeding program conducted by the Inventor in Rheinberg, Germany. The objective of the program is to create and develop new freely branching Chamaesyce plants with mounding plant habit, early flowering and multiple white-colored flowers per inflorescence.

The new Chamaesyce plant originated from a cross-pollination by the Inventor in July, 2017 of a proprietary selection of Chamaesyce hypericifolia identified as code number EW-0030, not patented, as the female, or seed, parent with a proprietary selection of Chamaesyce hypericifolia identified as code number EW-0008, not patented, as the male, or pollen, parent. The new Chamaesyce plant was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination in a controlled greenhouse environment in Rheinberg, Germany in May, 2020.

Asexual reproduction of the new Chamaesyce plant by terminal vegetative cuttings in a controlled greenhouse environment in Rheinberg, Germany since June, 2020 has shown that the unique features of this new Chamaesyce plant are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

Plants of the new Chamaesyce have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Dochastaduclewhi’. These characteristics in combination distinguish ‘Dochastaduclewhi’ as a new and distinct Chamaesyce plant:

-   -   1. Relatively compact, mounding to semi-trailing plant habit.     -   2. Moderately vigorous growth habit.     -   3. Freely branching habit.     -   4. Freely flowering habit.     -   5. Inflorescences with multiple white-colored flower bracts.

Plants of the new Chamaesyce differ primarily from plants of the female and male parent selection in growth habit as plants of the new Chamaesyce are more compact than and not as vigorous as plants of the parent selections.

Plants of the new Chamaesyce can be compared to plants of Euphorbia hypericifolia ‘Inchadiacl’, disclosed in U.S. Plant Pat. No. 32,682. In side-by-side comparisons, plants of the new Chamaesyce differ primarily from plants of ‘Inchadiacl’ in growth habit as plants of the new Chamaesyce are more compact than and not as vigorous as plants of ‘Inchadiacl’. In addition, plants of the new Chamaesyce have narrower leaves and broader inflorescences than plants of ‘Inchadiacl’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Chamaesyce plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Chamaesyce plant.

The photograph is a side perspective view of a typical flowering plant of ‘Dochastaduclewhi’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations and measurements describe plants grown during the spring and early summer in 22-cm containers in a glass-covered greenhouse in Rheinberg, Germany and under cultural practices typical of commercial Chamaesyce production. During the production of the plants, day and night temperatures averaged 18° C. and light levels averaged 4,500 lux. Plants were twelve weeks old when the photograph was taken and 25 weeks old when the description was taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, Fifth Edition, 2007, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Chamaesyce hypericifolia     ‘Dochastaduclewhi’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Chamaesyce             hypericifolia identified as code number EW-0030, not             patented.         -   Male, or pollen, parent.—Proprietary selection of Chamaesyce             hypericifolia identified as code number EW-0008, not             patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About five days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About seven days at             temperatures about 20° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures about 20° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures about 20° C.         -   Root description.—Fine, fibrous; typically white in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizer type and formulation,             substrate temperature and physiological age of roots.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Relatively compact, mounding to             semi-trailing; inflorescences positioned above and beyond             the foliar plane; moderately vigorous growth habit and             moderate growth rate.         -   Branching habit.—Freely branching habit; about three to five             primary lateral branches each with numerous secondary             lateral branches develop per plant.         -   Plant height.—About 32 cm.         -   Plant diameter or spread.—About 46 cm.         -   Lateral branch description.—Length: About 26 cm. Diameter:             About 5 mm. Internode length: About 5.6 cm. Aspect:             Initially upright to outwardly to eventually semi-trailing.             Strength: Moderately strong. Texture: Smooth, glabrous.             Color: Close to 137C.         -   Leaf description.—Arrangement: Opposite, simple. Length:             About 2.9 cm. Width: About 8.5 mm. Shape: Elliptical. Apex:             Acute. Base: Attenuate. Margin: Entire, not lobed. Venation             pattern: Pinnate. Texture, upper surface: Pubescent; not             rugose. Texture, lower surface: Pubescent; rugose. Color:             Developing leaves, upper surface: Close to 144A. Developing             leaves, lower surface: Close to 144B. Fully developed             leaves, upper surface: Close to 137A; venation, close to             144B. Fully developed leaves, lower surface: Close to 138A;             venation, close to 137A. Petioles: Length: About 1.1 cm.             Diameter: About 0.7 mm. Strength: Moderately strong.             Texture, upper and lower surfaces: Smooth, glabrous. Color,             upper and lower surfaces: Close to 144B. -   Inflorescence description:     -   -   Inflorescence type and habit.—Inflorescences are composed of             a single cyathia surrounded with about ten flower bracts             subtending the cyathia; inflorescences positioned above and             beyond the foliar plane; freely flowering habit with             numerous inflorescences developing per plant; inflorescences             face mostly upright to outwardly.         -   Inflorescence diameter.—About 6.8 cm.         -   Inflorescence height.—About 5.6 cm.         -   Fragrance.—None detected.         -   Natural flowering season.—Plants typically flower from the             spring through the summer in northern Europe.         -   Inflorescence longevity.—Inflorescences last about ten days             on the plant; inflorescences persistent.         -   Flower bracts.—Quantity per inflorescence: About ten.             Length, largest bracts: About 1.1 cm. Width, largest bracts:             About 2.6 mm. Shape: Elliptical to lanceolate; flat. Apex:             Rounded to acute. Base: Attenuate, fused. Margin: Entire,             not undulate. Texture, upper and surfaces: Smooth, glabrous.             Aspect: Mostly horizontal. Venation pattern: Pinnate. Color:             Developing bracts, upper and lower surfaces: Close to 155B.             Fully developed bracts, upper and lower surfaces: Close to             NN155D; venation, close to NN155D; color does not change             with development. Flower bract petioles: Length: About             1.9 mm. Diameter: About 0.4 mm. Texture, upper and lower             surfaces: Smooth, glabrous. Color, upper and lower surfaces:             Close to 144B.         -   Cyathia.—Quantity per corymb: One. Diameter: About 1.4 mm.             Height: About 3 mm. Shape: Oval; sessile. Color: When             developing and fully developed cyathia, upper surface: Close             to 144B. When developing and fully developed cyathia, lower             surface: Close to 144A. Nectaries: Quantity per cyathium:             One. Length: About 0.5 mm. Width: About 0.5 mm. Shape: Oval.             Texture: Smooth, glabrous. Color: When developing and fully             developed nectaries, inner surface: Close to 144C and 155C.             When developing and fully developed nectaries, outer             surface: Close to 144C and 155C.         -   Peduncles.—Length: About 4.4 mm. Diameter: About 1.2 mm.             Strength: Strong. Aspect: Incurved. Texture: Smooth,             glabrous. Color: Close to 144A.         -   Reproductive organs.—Stamens: Quantity per cyathium: About             six. Filament length: About 1.3 mm. Filament color: Close to             155C. Anther shape: Oval. Anther length: About 0.5 mm.             Anther color: Close to 158C. Amount of pollen: Scarce.             Pollen color: Close to 158D. Pistils: Quantity per cyathia:             One. Pistil length: About 1.2 mm. Stigma shape: Crested.             Stigma color: Close to 155D. Style length: About 0.5 mm.             Style color: Close to 145C. Ovary color: Close to 144B.         -   Seeds and fruits.—To date, seed and fruit production has not             been observed on plants of the new Chamaesyce. -   Garden performance: Plants of the new Chamaesyce have been observed     to have good garden performance and to tolerate wind, rain,     temperatures ranging from about 8° C. to about 30° C. -   Pathogen & pest resistance: Plants of the new Chamaesyce have not     been shown to be resistant to pathogens and pests common to     Chamaesyce plants. 

It is claimed:
 1. Anew and distinct Chamaesyce plant named ‘Dochastaduclewhi’ as illustrated and described. 